Block height - The block selection and size of the blockchain (in blocks) on generation of the current block Nonce - The transaction number for that from address (bear in mind this starts off at 0 so a nonce of 100 would actually be the a hundred and first transaction https://active-bookmarks.com/story20477909/new-step-by-step-map-for-blockchain-explorer-unconfirmed-transaction-https-hedge-fachschaft-informatik-uni-kl-de-nnpg48bpspmldanhox94bq